Smokestack for movable power plants



Jan# 2, 1945 l t v. G. FRlsK 2,366,511

slvloxssmcx` Fon MovABLE POWER PLANTS v Filed Jung 12, 1943 Figi.

22 VladivvwhF` 6. Frisk,

His Attrney.

Patented Jan. 2, 1945 sMoKEs'rAcK Fon MovALE POWER` PLANTS Vladimir G.Frisk, Schenectady, N. Y., assignor to General Electric Company, acorporation of New York Application JunelZ, 1943, Serial No. 490,630

2 Claims.

The present invention relates to smokestacks for movable power plants,especially ofthe kind which are to be moved on railroad tracks. Bridgesand other overhead obstacles ordinarily necessitate makingthe smokestackof several `parts which can be readily assembled and dismantled.

The object of my invention is to provide an improved smokestackespecially adapted for movable power plants.

For a consideration ofwhat I believe to be novel and my invention,attention is directed to the following description and the claimsappended thereto `in connection with the accompanying drawing.

In the drawing Fig. 1 illustrates a movable power plant embodying myinvention;` Fig. 2 shows a sectional view of the smokestack of Fig. 1 toan enlargedscale; Fig. 3 shows such smokestack in operating position;and Figs. 4 and 5 are detail views of certain parts of Fig. 3.

The movable power plant arrangement shown in Fig. 1 comprises aplurality of trucks I0 which may be moved along a railroad track. Thesetrucks are connected by and act as a support for a frame II which formsa foundation for power plant apparatus including a boiler with acombustion and convection chamber I2 and a smokestack arrangement I3 forconducting gases discharged from the combustion and convection chambersto atmosphere and aiding to induce sutlicient draft in the combustionchamber.

The smokestack arrangement comprises a plurality of substantiallycylindrical members or smokestack cylinders. In the present instance Ihave shown three such cylinders I4, I5 and I6.

` These cylinders are of successively smaller diameters so that they maybe telescoped into each other, as shown in Fig. 2. The lower cylinder I4is rigidly secured to the frame orfoundation of the power plant andenclosed by a heat-insulating wall Il. The lower end of the cylinder I4forms an opening I8 for receiving gases discharged from the combustionand convection chambers I2 of the boiler or elastic fluid gener- Iator.- The intermediate cylinder I5 is supported on and secured to thelower cylinder I4 by means of a special coupling and centering device I9and the upper cylinder I6 is supported and centered on the upper end ofthe intermediate cylinder I5 by a similar coupling and centering device20.

`Each coupling and centering device I9and 20 comprises a flat ring 2land two cylinders 22 and 23 `of different diameters secured tothe lowerface and upper face respectively of the ilat ring 2I. In order to assurearm connection, the

inner diameters of the cylinders 22 and 23 are slightly smaller than thecorresponding outer diameters of the lower cylinder I4 and theintermediate cylinder I5 respectively. Each of the coupling devices I9,is made of two halves or segments 24 and 25 provided with flanges in theform of brackets 26 at the ends of each half for securing the halvestogether and thereby bringing them into intimate contact with theadjacent portions of the smokestack cylinders to be connected. Thecoupling device has a plurality of I circumferentially spaced radialpins 2l for projecting into openings 28 in the adjacent end portions ofthe smokestack cylinders. The structure as a whole is fabricated.` Thedilierent parts of each coupling device as fused together by welds. Whenassembled the flat ring 2 I rests on the upper end of thelower-smokestack cylinder I4 and the lower end of the intermediatecylinder I5 rests on the flat ring 2 I. The coupling cylinders 22,23

I form` gripping contact with the corresponding ends of the smokestackcylinders I4 and I5 respectively.

During assembly the intermediate cylinder I5 is heldin proper positionwith its lower end near and facing the upper end of the lower cylinderI4.` Thereupon the two halves 24 and 25 of the coupling device I9 areapplied from opposite sides and are radially moved toward each otheruntil the pins 2l project into the openings 28 of the smokestackcylinders. Finally the two halves of the coupling device are drawnagainst each other by tightening bolts 29 projecting through the angesor brackets 2B at adjacent endsof the two halves 24, 25.

vThe openings 28 in the upper end of the intermediate cylnder I5 alsofacilitate the application of hooks for lifting such cylinder. *Theupper cylinder is provided with cross bars 30 in its up- The`coudiameter corresponding to the smaller diameter of the uppersmokestack cylinder I6. When disassembled, that is,wh1e the power plantis moved or to be moved on tracks, the several cylinders are telescopedinto each other, as shown in Fig. `2, and their'upper `ends are enclosedby an enclosing cover 3I with a skirt 32 surrounding the upper ends ofthe cylinder. The cover 3| is securely fastened to a plurality ofcircumferentially spaced brackets 33 on the upper cylinder I6 by meansof bolts 34.

Having described the method of operation of or inner my invention,together with the apparatus which I now consider to represent the bestembodiment thereof, I desire to have it understood that the apparatusshown is only illustrative and that the invention may be carried out byother means.

What I claim as new and desire to secure by Letters Patent of the UnitedStates is:

1. A coupling l*and centering 'device for cylinders which may betelescoped into'each other, "said device comprising a at ring,cylindrical members of different inner diameters secured to opfpositesides of the ring, and radial pins secured to said'members.

2. A coupling and centering device for two cylinders of differentdiameter comprising a at ring and two cylindrical members of differentdiameter concentrically secured to opposite sides of VLADIMIR G. FRISK.

